Volvo S60 T5 - Air flow too low given in diagnostics with engine warning light on.<br/>I've had this message a few times now. <br/>Replaced the MAF sensor and put in a new air filter. No obvious tears in the hoses.<br/>Any other ideas / things to check?<br/> I've found that the car runs fine on a light throttle but becomes hesitant / judders once I put my foot down. <br/> Put new plugs in twice too.
Country: United KingdomMake: VolvoModel: S60 T5Year: 2006
Replaced air filter
Checked hoses for tears
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well if you know for sure you have good maf sensor and you have delte the fault codes with a scanner and disconnetec battery for 30 min after you replace the maf to reset ecu and fault comes back next step is to make sure there are no air vacuum leaks if that is all good next step is to remove the intake manifold and replace pcv box and clean throttle
the maf sensor will see and ecu if there is poor air flow thru intake and throttle and clogged pcv very commmon to get dirty
Hi, Brand new Bosch Sensor went in - codes came back. Battery was disconnected for 2 hours yesterday.
What is the best way to check for vacuum leaks?Also, what is the pcv?Thanks
vacuum leaks to check is best if you spray some carburetator cleaner all over the engine and look for any rpm or idle change it will change if there is vacuum leak
As your engine runs, gases from the cylinders leak past the piston's sealing rings into the crankcase. This leaked gas is sometimes referred to as "blow by" because the pressure within the cylinders "blows" them "by" the piston rings. These gases include compounds harmful to an engine, particularly hydrocarbons (unburned fuel), as well as carbon dioxide and water vapor. If allowed to remain in the crankcase, or become too concentrated, the harmful compounds will condense out of the air within the crankcase and form corrosive acids and sludge on the engine's interior surfaces. This can harm the engine as it tends to clog small inner passages, causing overheating, poor lubrication, and high emissions levels. Additionally high pressure in the crankcase can build to a point that leads to a rear main seal failure, an expensive repair. To keep the crankcase air as clean as possible, some sort of ventilation system must be present.
There are different types of PCV systems depending on your car. Some systems use a PCV valve – a one-way valve that ensures continual evacuation of gases from inside a gasoline internal combustion engine's crankcase. Other systems use an oil trap or separator to do the job.
Over time PCV systems and associated tubing can become clogged and fail to vent the buildup of pressure
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vacuum leaks to check is best if you spray some carburettor cleaner all over the engine and look for any rpm or idle change it will change if there is vacuum leak
There are different types of PCV systems depending on your car. Some systems use a PCV valve - a one-way valve that ensures continual evacuation of gases from inside a gasoline internal combustion engine's crankcase. Other systems use an oil trap or separator to do the job.
YOU HAVE TO REMOVE THE INTAKE MANIFOLD TO ACCESS ALL THE REPAIRS AND CLEAN IT .Enes40636.6696607986
I send you the answer do you need more help just ask me. If you can give me credit for my time press the green button thank you
Hi - I haven't had the time to check your suggestion but will accept your answer. I may need to come back and ask more questions though.
You can follow up. With me after you press accept that is no problem. when you press accept you still talk to me. Also when you do repair delete fault codes before repair and disconnect battery when you do the repair
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